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Intact Genomics PCR Products

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Item #: ASPCRREAG14 
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Cas9 Nuclease 
Clustered regularly interspaced short palindromic repeats (CRISPR)/CRISPR-associated (Cas) systems provide bacteria and archaea with adaptive immunity against viruses and plasmids by using CRISPR RNAs (crRNAs) to guide the silencing of invading nucleic acids. The CRISPR system consists of a short non-coding guide RNA (sgRNA) made up of a target complementary CRISPR RNA (crRNA) and an auxiliary transactivating crRNA (tracrRNA). The sgRNA guides the Cas9 endonuclease to a specific genomic locus via base pairing between the crRNA sequence and the target sequence, and cleaves the DNA to create a double-strand break. The location of the break is within the target sequence 3 bases from the NGG PAM (Protospacer Adjacent Motif). The PAM sequence, NGG, must follow the targeted region on the opposite strand of the DNA with respect to the region complementary sgRNA sequence

Intact Genomics Cas9 Nuclease is the purified recombinant Streptococcus pyogenes Cas9 enzyme containing a nuclear localization signal (NLS) at the C-terminal for targeting to the nucleus. This enzyme is designed to perform CRISPR/Cas9-mediated genome editing. The physical purity of this enzyme is â¥98% as assessed by SDS-PAGE with Coomassie® blue staining.

Quality Control 
Quality control is performed following the production of each new lot of product to ensure that it meets the quality standards and specifications designated for the product. Each lot is repeatedly compared side-by-side with leading competitors to ensure our products outperform the competitor before product launching. 

Cas9 nuclease is free from detectable RNase, Endonuclease (nicking) and non-specific DNase activities.

Product Source 
E. coli BL21 (DE3) strain expressing a Cas9 gene from Streptococcus pyogenes with an N-terminal 6xHis tag and C-terminal SV40 nuclear localization signal (NLS).

Contents & Storage

  1. Cas9 Nuclease
  2. 10x Cas9 Nuclease Reaction Buffer

Store Cas9 Nuclease and Buffer at -20 °C

Storage Buffer 
50 mM Tris-HCl, 50 mM KCl, 1 mM DTT, 0.1 mM EDTA, 50% Glycerol, pH 7.5 @ 25 °C

1x Cas9 Reaction Buffer 
20 mM HEPES, 100 mM NaCl, 5 mM MgCl, 0.1 mM EDTA, pH 6.5 @ 25 °C

Functional Testing
Cas9 Nuclease functional testing was done by in vitro DNA cleavage assay with the following protocol which gives more than 95% digestion of the substrate DNA as determined by agarose gel electrophoresis.
1) Set up 30 µl reaction in a microcentrifuge tube on ice with the following combinations.

Target DNA

x µl (100ng)

sgRNA

x µl (4000ng)

10x Cas9 Reaction Buffer

3.0 µl

Cas9 Nuclease

1.0 µl (160ng)

Add H2O up to

30.0 µl


  

2) Gently mix the reaction mixture and centrifuge briefly.
3) Incubate at 37 °C for 60 min. 
4) Add 1 µl RNase (4 mg/ml) 
5) Incubate at 37 °C for 20 min.
6) Run 0.7 to1% agarose TBE gel.

PNPCRREAG

Magnesium
Mg
Dye
No Dye
Enzymes
Intact Genomics
Pkg
Indiv
Type
Proofreading
 
 
 
SKU Number Vol Magnesium Dye Enzymes Pkg Type Price Quantity Add to Cart
3316 200 Units Mg No Dye Intact Genomics Indiv Proofreading
155.00
Each
  Item is no longer available.  
3316D 200 Units Mg No Dye Intact Genomics Indiv Proofreading
169.00
Each
  Item is no longer available.  
3318 1,000 Units Mg No Dye Intact Genomics Indiv Proofreading
615.00
Each
  Item is no longer available.  
3318D 1,000 Units Mg No Dye Intact Genomics Indiv Proofreading
665.00
Each
  Item is no longer available.  
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